Hi, ALL I am trying the android-n-preview with kernel4.4, and found the tracefs is automatically mounted there by kernel, mount options like this: tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
And I found avc warnings on the console like this: [ 6.840279] init: SELinux: Could not set context for /sys/kernel/debug/tracing/set_event_pid: Operation not supported on transport endpoint I think it's caused by the following lines in file_contexts file: /sys/kernel/debug/tracing(/.*)? u:object_r:debugfs_tracing:s0 /sys/kernel/debug/tracing/trace_marker u:object_r:debugfs_trace_marker:s0 And seems the tracefs does not support the seclabel mount option, So what's the better way to support tracefs in Android? Seems updating sepolicy rules is an easier way, but what if the kernel still does not support tracefs yet? Or do some changes in kernel side on tracefs? And tracefs would be supported in the user mode as well I guess. -- Best Regards, Yongqin Liu --------------------------------------------------------------- #mailing list [email protected] <[email protected]> http://lists.linaro.org/mailman/listinfo/linaro-android
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